scholarly journals Quantum voting protocol using two-mode squeezed states

2009 ◽  
Vol 58 (5) ◽  
pp. 3166
Author(s):  
Yi Zhi ◽  
He Guang-Qiang ◽  
Zeng Gui-Hua
Keyword(s):  
Squeezed States ◽  
Quantum Voting ◽  
Quantum Voting Protocol

Novel Quantum Voting Protocol with Eight-Qubit Cluster Entangled State

2020 ◽  
Vol 59 (9) ◽  
pp. 2671-2680
Author(s):  
Yan-Ping Li ◽  
Fu-xiao Zhou ◽  
Tian-yin Wang ◽  
Lai-feng Lu
Keyword(s):  
Entangled State ◽  
Quantum Voting ◽  
Quantum Voting Protocol

A quantum voting protocol using single-particle states

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
Yue-Ran Li ◽  
Dong-Huan Jiang ◽  
Yong-Hua Zhang ◽  
Xiang-Qian Liang
Keyword(s):  
Single Particle ◽  
Quantum Voting ◽  
Quantum Voting Protocol

Anonymous quantum voting protocol based on Chinese remainder theorem

2021 ◽  
Vol 75 (1) ◽  
Author(s):  
Run-hua Shi ◽  
Jia-qi Qin ◽  
Bai Liu ◽  
Mingwu Zhang
Keyword(s):  
Chinese Remainder Theorem ◽  
Quantum Voting ◽  
Quantum Voting Protocol

scholarly journals Overcoming detection loss and noise in squeezing-based optical sensing

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Gaetano Frascella ◽  
Sascha Agne ◽  
Farid Ya. Khalili ◽  
Maria V. Chekhova
Keyword(s):  
Shot Noise ◽  
Optical Sensing ◽  
Detection Efficiency ◽  
Signal To Noise Ratio ◽  
Real Life ◽  
Squeezed States ◽  
Squeezed Light ◽  
Noise Limit ◽  
Imaging And Spectroscopy ◽  
Shot Noise Limit

AbstractAmong the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic field, polarization, mechanical displacement. They promise to considerably increase signal-to-noise ratio in imaging and spectroscopy, and are already used in real-life gravitational-wave detectors. But despite being more robust than other states, they are still very fragile, which narrows the scope of their application. In particular, squeezed states are useless in measurements where the detection is inefficient or the noise is high. Here, we experimentally demonstrate a remedy against loss and noise: strong noiseless amplification before detection. This way, we achieve loss-tolerant operation of an interferometer fed with squeezed and coherent light. With only 50% detection efficiency and with noise exceeding the level of squeezed light more than 50 times, we overcome the shot-noise limit by 6 dB. Sub-shot-noise phase sensitivity survives up to 87% loss. Application of this technique to other types of optical sensing and imaging promises a full use of quantum resources in these fields.

Phase properties of superposed squeezed states

2001 ◽  
Vol 8 (6) ◽  
pp. 422-430
Author(s):  
Suc-Kyoung Hong ◽  
Chung-In Um ◽  
Kyu-Hwang Yeon
Keyword(s):  
Squeezed States ◽  
Phase Properties

scholarly journals Quantum frequency down-conversion of bright amplitude-squeezed states

2014 ◽  
Vol 22 (20) ◽  
pp. 24192 ◽  
Author(s):  
Dehuan Kong ◽  
Zongyang Li ◽  
Shaofeng Wang ◽  
Xuyang Wang ◽  
Yongmin Li
Keyword(s):  
Squeezed States ◽  
Quantum Frequency ◽  
Down Conversion

Quantum noise of modulation and squeezed states

1986 ◽  
Vol 119 (2) ◽  
pp. 51-54 ◽  
Author(s):  
Y. Ben-Aryeh
Keyword(s):  
Quantum Noise ◽  
Squeezed States

Quadrature-dependent Bogoliubov transformations and multiphoton squeezed states

2002 ◽  
Vol 66 (2) ◽  
Author(s):  
Ying Wu ◽  
Robin Côté
Keyword(s):  
Squeezed States ◽  
Bogoliubov Transformations

Squeezed states of light pulses in the presence of a self-effect in an inertial nonlinear medium

JETP Letters ◽  
1999 ◽  
Vol 69 (7) ◽  
pp. 516-520 ◽  
Author(s):  
F. Popesku ◽  
A. S. Chirkin
Keyword(s):  
Nonlinear Medium ◽  
Squeezed States ◽  
Light Pulses
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